Fast Object Database for Java - with JPA/JDO support

ObjectDB 2.8.4

Released on 2021-02-06 (see other available releases).

Note: A newer version is available.

Use of ObjectDB is subject to the ObjectDB Licence agreement

Changes in ObjectDB 2.8.4:

  • Fixed a critical bug that may cause collisions between schema versions (issue #2621).
  • Fixed unsupported unwrap to throw _PersistenceException (a subclass of PersistenceException).
  • Fixed an Explorer bug in presenting composite IDs.
  • Fixed a bug in using date and time query parameters in the Explorer (issue #2587).
  • Fixed a bug in using local dates with BETWEEN in queries (issue #2583).
  • Fixed an "Activator requires Java 6 or above" error on some JDKs (issue #2604).
  • Improved the process of creating objects in the Explorer (feature request #2602).
  • Fixed a performance issue in viewing class instances in the Explorer (issue #2601).
  • Fixed an Explorer bug of viewing query results in tables (issue #2600).
  • Fixed a bug in using trailing '_' wildcard in LIKE queries (issue #2576).
  • Removed exceptions due to closing the database connection during index update (issue #2571).
  • Added support for a new query hint for setting a preferred variable processing order (issue #2379)

See the full change log.

ObjectDB with Maven

To use ObjectDB in your Java Maven project merge the following repositpory and dependencies into your pom.xml file:

            <name>ObjectDB Repository</name>


ObjectDB 2.8.4 Maven files:

objectdb-2.8.4.jar objectdb-2.8.4.jar.md5 objectdb-2.8.4.jar.sha1
objectdb-2.8.4.pom objectdb-2.8.4.pom.md5 objectdb-2.8.4.pom.sha1


ObjectDB Development Kit

The ObjectDB Development Kit includes:

  • The ObjectDB runtime JAR (available also on Maven).
  • The GUI ObjectDB Explorer.
  • Sample ObjectDB databases that you can open in the Explorer.
  • Command line tools for running the ObjectDB Server and the ObjectDB Enhancer.
  • Tutorial projects in Maven format for opening and running in your favourite IDE.
  • A sample objectdb.conf configuration file.
  • Source code of the JPA and JDO APIs.
  • JavaDoc of the JPA and JDO APIs.
  • The complete ObjectDB Manual in PDF format.

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support